Twyer-iron.



No. 793,467. PATENTED JUNE 27, 1905. S. P. PETERSEN & W: TOUPS.

TWYER IRON.

APPLICATION FILED MAR. a, 1905.

VENTORS UNITED STATES Patented June 27, 1905.

PATENT OFFICE.

TWYER-IRON.

SPECIFICATION forming part of Letters Patent No. 793,467, dated June 27, 1905.

Application filed March 8, 1905. Serial No. 249,029.

To all whom, it may concern:

Be it known that we, SoREN P. PETERSEN and W ILSON Tours, residing at Patterson, in the parish of St. Mary and State of Louisiana, have invented certain new and useful Improvements in Twyer-Irons; and we do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to twyer-irons for use in the hearths of blacksmiths; and it consists in the novel construction and combination of the parts hereinafter fully described and claimed.

In the drawings, Figure 1 is a plan view of the twyer-iron. Fig. 2 is a longitudinal section through the twyer-iron. Fig. 3 is an end view. Fig. 4: is a cross-section taken on the line 00 w in Fig. 2. Fig. 5 is a detail plan view of the blast-tube.

A is a cylindrical blast-chamber provided with a pipe 7) at one end for the entrance of air.

B is awater-jacket which surrounds the greater part of the length of the blast-chamber and which is provided at one end with pipe connections 0 and (Z for circulating water through it.

C is a series of holes for the blast, arranged along the upper side of the blast-chamber and its water-jacket, and D is a distance-piece of non-heatconducting material in the upper part of the water-jacket which has the said holes C formed through it. E represents lugs or supporting-brackets on the sides of the water-jacket for supporting it in position. F is the blast-regulating pipe or tube, which is arranged inside the blast-chamber A, and f is a handle which projects from the regulatingtube through a slot in one end portion of the blast-chamber and which afiords a means for oscillating the blast-regulating tube. A series of cross slots or holes G is formed in the regulating-tube, and these holes register with the said holes G.

The regulating-tube can be turned so that the blast will pass through all the holes C or through only certain of them, as is found requisite.

H is a cap at the outer end of the blastchamber A. This cap closes the end of the blast-chamber, and it is provided with a pivoted door 71..

I is a damper-plate pivoted on the door 72 and provided with holes z', so that a portion of the blast can be let out, if desired.

This twyer-iron can be made of any desired length and can be used for a long fire or a short fire, according to the length of weld required. It does not become burned, and there is no danger of it becoming broken.

What we claim is--- 1. In a twyer, the combination, with a cylindrical blast-chamber provided at one end with a blast-inlet pipe and having a series of blast-outlet holes along its top side, of a blastregulating tube arranged in the said chamber and provided with an open end adjacent to the said inlet-pipe and having lateral openings for registering with the said outlet-holes, and means for adjusting the position of the said tube so as to regulate the blast.

2. In a twyer, the combination, with a cylindrical blast-chamber provided at one end with a blast-inlet pipe and having a series of blast-outlet holes along its top side, of a blastregulating tube arranged in the said chamber and provided with an open end adjacent to the said inlet-pipe and having lateral openings for registering with the said outlet-holes, a water-jacket encircling the said chamber and provided with outlet-passages for the blast, and means for adjusting the position of the said tube so as to regulate the blast.

3. In a twyer, the combination, with a eylindrical blast-chamber provided at one end for adjusting the position of the said tube to with a blast-inlet pipe and having a series of regulate the blast. blast-outlet holes along its top side, of a blast- In testimony whereof We alfix our signatures regulating tube arranged in the said chamber in presence of two Witnesses.

5 and provided with an open end adjacent to the SOREN P PETERSEN said inlet-pipe and having lateral openings for registering with the said outlet-holes, an ad- WILSON TOUPS' justable damper provided with openings and Witnesses: arranged at the other end of the said blast- G. A. ROUSSEL, I chamber from the said inlet-pipe, and means GEO. I-I. ONIELL. 

